Anthropic's recent release cadence positions the market's strong lean toward no Claude Opus 5.6+ launch by November 30, with the 5.5 model shipping only on September 22 after prior Opus point releases spaced roughly 60 days apart throughout 2026. Traders appear to weigh the absence of official system-card updates or announcements signaling an accelerated November timeline against the company's focus on completing the 5.5 family (Sonnet and Haiku variants in late September and early October) and unrelated developments such as its October IPO filing. A credible early-November Fable 5.5 release could still serve as a precursor, but historical gaps of three to seven weeks between Fable and subsequent Opus variants point more toward early December. Market-implied odds reflect this pattern while leaving room for surprise capability demonstrations or competitive pressure to shift timelines.